Heritability estimates versus large environmental effects: The IQ paradox resolved
Heritability estimates versus large environmental effects: The IQ paradox resolved
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DOI：
10.1037/0033-295x.108.2.346
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发表时间：
2001-04-01
影响因子：
5.4
通讯作者：
Flynn, JR
中科院分区：
文献类型：
--
作者：
Dickens, WT;Flynn, JR
有些人认为，智商的高遗传性使得纯粹的环境因素解释群体之间的巨大智商差异变得不可信。然而，大环境诱导的智商增益代之间的环境在塑造智商的重要作用。作者提出了一个正式的模型的过程中，决定智商的人的智商是受环境和基因，但他们的环境是匹配他们的智商。作者展示了这样一个模型如何允许环境产生非常大的影响，甚至包括遗传力的最高估计。除了解决这个悖论，作者还表明，该模型可以解释许多其他现象，其中一些从标准的角度来看是异常的。
Some argue that the high heritability of IQ renders purely environmental explanations for large IQ differences between groups implausible. Yet, large environmentally induced IQ gains between generations suggest an important role for environment in shaping IQ. The authors present a formal model of the process determining IQ in which people's IQs are affected by both environment and genes, but in which their environments are matched to their IQs. The authors show how such a model allows very large effects for environment, even incorporating the highest estimates of heritability. Besides resolving the paradox, the authors show that the model can account for a number of other phenomena, some of which are anomalous when viewed from the standard perspective.